#331689#331689

#331689 is a dark, vivid violet. Relative luminance 0.031; OKLCH L 33.4% C 0.172 H 283.5°. Best body text is #FFFFFF at 12.99:1 contrast (WCAG AA passes).

Color values

HEX	#331689
RGB	rgb(51, 22, 137)
HSL	hsl(255, 72%, 31%)
HSV	hsv(255, 84%, 54%)
CMYK	cmyk(62.8%, 83.9%, 0%, 46.3%)
CIE-LAB	lab(20.37, 44.12, -57.98)
CIE-LCH	lch(20.37, 72.86, 307.27°)
OKLab	oklab(33.37% 0.0402 -0.1672)
OKLCH	oklch(33.37% 0.172 283.5)
XYZ	xyz(6.1661, 3.0833, 23.9323)
Luminance	0.0308 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#331689 #6C8916

analogous

#163389 #331689 #6C1689

triadic

#331689 #893316 #168933

tetradic

#331689 #891633 #6C8916 #16896C

square

#331689 #891633 #6C8916 #16896C

split-complementary

#331689 #896C16 #338916

monochromatic

#0C0520 #1F0E54 #331689 #471EBE #643ADF

Accessibility & contrast

On white

12.99

#331689 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.62

#331689 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #331689

12.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##331689	#FFFFFF	#000000	##FFFFFF
##331689	1.00	12.99	1.62	12.99
#FFFFFF	12.99	1.00	21.00	1.00
#000000	1.62	21.00	1.00	21.00
##FFFFFF	12.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00348C

Deuteranopia (green-blind)

#002D87

Tritanopia (blue-blind)

#003A51

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #331689;
/* rgb */ color: rgb(51, 22, 137);
/* oklch */ color: oklch(33.4% 0.172 283.5);

Tailwind

colors: {
  custom: {
    50: '#7759ad',
    500: '#331689',
    950: '#000000',
  },
}

SCSS

$custom: #331689;
$custom-light: #7759ad;
$custom-dark: #000000;

JSON

{
  "hex": "#331689",
  "rgb": {
    "r": 51,
    "g": 22,
    "b": 137
  },
  "hsl": {
    "h": 255.13,
    "s": 72.327,
    "l": 31.176
  },
  "oklch": {
    "l": 0.33368,
    "c": 0.17195,
    "h": 283.5
  },
  "luminance": 0.03084
}

Semantic roles & 50–950 ramp

primary

#331689

secondary

#9DBD3E

accent

#EF39C1

background

#F7F5FA

surface

#EEE9F4

border

#C9C5CE

text

#0A0410

muted

#7C797F

Preview Lab

Preview with #331689

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →